Cooling system



' l y 1,630,069 w. w. Mg.J|R comme SYSTEM VFilled Anz. 16. .1922 ZShcets-Sheet 1 lm luy HHH Wmmlmmmmnnmmmmmumm 'T 1 HHHHIHHI HHIHIHIHHHIHHHIIHHHHH M1 MII #C Mail l Inventor A #rney z tional' view ofV a cooling syste'm made Patented My' 24, 116i?. p

WELLINGTON W. nuria; or .Locxronr Nnwyo'mic r Application nled August 1B, 1922. Serial No. 582218.

.invention consists in ithe novel detailsofcon-i. V:struction and combination of parts morefully hereinafterdisclosed and particularly,

pointed out-in the claims.

R'v ferring yto the accompanying drawings forming a part of this-speciication in which like numerals designate'like parts :in all the viewsa; Y.

Figure `1 1s a vdla'grannnatlcpart1ally sc c- 'm Vaccordance' Withf'this. invention; t 5

,Fig-ure -2 is a sectlonalview -ofja portion Figure l;

of the partsshown in Figure`. 3 is an enlargeddetall partially: sectional view of. the ump and 'its assol ,ciatedparts shown'in" igurel;

l Figure iis a viewsimilarto Figure 1 but showingfa lsomewhat modified form of construction; f

Figure 5 is a detail, sectional view of the' valved air .vent shown in Figure "4; and

Figure l6l is a detail sectional view of a portionoiz'` the jac et' and the. pipe leading thereto 'illustrated in Figure ,1.`

jacket, 2a pipeleadingfrom said jacket to a4 tank 3, 4:. a pipe leading from said tank 3 to the tank 5, 6 a plurality ofy water tubes whosel lower ends, open into said tank 5.and

whoseupper ends openinto'the air tank v7,

. Sheat radiatingfins surrounding saidtubes 6, and 9 avent pz`p'e `leading from said. air

tankor chamber is vthe, pump 12, delivering into `t e'pipe 13 connected Vto the tank 3 as 'shown. Leading.`

from said tank 3 tothe' pump 14 is the pipe 15.

Said pump l14 is -providedwith4 a. shaft 16, a l set ofimpeller blades 17 ,ajsingle stufling box 18, and a baffle or'partit1on'19 .as illustrated. In the modified form of. the `invention illustrated. in' Figures 4to 6, the pipe 4 is space 23 -lead one or more tubes 25 of the lhoney comb-ofthe radiator26. The lower ends of tubes 25 open into tank 5, and from chamber 7l leads 'the venttube 27 rovided .with-the capV 3Q" associated with t e openv Steam or hot water,

tothe atmosphere. Con-vr nectedto `the radlator 10 by the vassage 11 ings 31 andfvalve 28, controlled the spring. 29. This cap 30' with vitsassociated "i opeings 31- and valve 28 :are also provided on the pipe 9il1ustrated'in-F-igure 1 in orderl lto control the temperature o f'the fluidin the circuit containing the pump 12.4 l In this modified form ofthe 'invention'the- Figure 1, the operation Aof'this inventioILS@`A l as followsz or a mixture of steam andhot water pass from the jacket 1, under pressure, through the pipe-2 to thetank 3 saidl tubes are. provided inthe. radiator-.10.

Asfast as the vapors are condensed they'will v'--iiow down said vtubes 6 under the action of. gravity and collect in thetank 5. Any

vapors-which are not-condensedin the Atubes 6 will nd their way into the air` chamber v .l 7 between the top ends of,Y the tubes 6, and

Referring to'Figures 1 to 3, 1 .indicates 4a the bottom ofthe tank f3,v wherersa-id vapors 'being brought into contactwith thecooler condensed and will therefore find their way of ravity descend said tubes'to'theta'nk. 5. he pump '12 is operated b means not shown to suck the. uid out o? the tank 5, and force it through the pipe 13 back intov said tank 3," as fast as the vapors arecondensed. The `fluid is thus circulated around vand around. through thetank 3,-the piped and thetank 5 so long as the level 30 is maintained above the extreme end 31 of the pipe '4, and s0 long as thefpuinp 12 is running.

The extreme' end 33 of the pipe 13 is located `'on the' level ,above that of the extreme end 31 ofthe pipe 4 so-that the fluid isv taken out ofv tank 3 by'pipe tbeiforelit rises to .a height suliicientl for it toiiow back into "until the level 30 of saidfluidin saidtank yoverflows the extreme end 31 of thepipe 4, Whensaid hot fluid will flow down said pipe 44 intothe tank 5, Whereuponivapor'willbe given olfrom said fluid which willfriseifin thewater passages 6 and .be condensed there; `in owing tothe cooling effect of the iins or other heat radiating elements with whichv soy portion of the fluid intank'3 will be further Yback into the-tubes Gandl under'the action said pipe- 13. When the load on the engine Y,

increases the combustion chambers .et hotter and therefore the temperature vin t e' jacket rises with ia result that more steam' or otherl fluid passes through 'thepipe 2 into the t'ank 3 than isthe casewhen the load is lighter.

Under 'such conditions "the pump 14 which is preferably of the centrifugal type runs faster and therefore sucks through the passages 35 and 36 more than the normal uant'ity of uid which enters said` jacket t rou h4 the passage 37. .i The fluid thus sucke into` thepassage 36is forcedradially outward by the impellers 17,: and thus is apressu're created in the impeller chamber 37 which causes said fluid toy be forced out past the battles l9'-into the vpassage 37 and into' the jacket l', all in a mannerwhich will ,be

understood from Figure 3 of the drawings. It thus resultsthat as the'speed of the en gine increases 'the circulation of the fluid through the pipe 4- increases as well as the condensation ofsaid fluid inthe tubes 6.-

In the meantime, the pump 12 has its speed correspondingly increased so that the fluid is returned at an increased rate to the tank 3 and thus is the extra cooling demand on the system supplied. -Said pipe 4 does not pass directly through the radiator honey comb, and therefore its cooling effect is relatively s'light.. j

In the modified form of the invention shown in Figure 4, however, the Water tubes 25 of the honey comb are utilized to return the fluid from the-tank 3 and pipe 22 to the tank 5, and as these 'tubes are subjected to. Aa lmuch greatercooling action than the tube 4, any luidzpassing therethrough is of necessity cooled to, a greater degree than would be the case in-Figure v1. In this construction shown in Figure 4, the vapor asses up the water tubes 6 on the outside o the con- .ducting tubes 25 and 'said vapors'are condensed in the manner above -disclosed and fall back-into the tank 5 as will be readily understood."z l

Any vapors' that are not condensed insaid tube 6 find their lway into theair chamber in the same manner as was disclose 7 and they are likewise additionall cooled nectionwith Figure 1. The wise returns the cooled fluid tc the tank 3 through the pipe 13 and thus circulates thel i itsproportion of fluid back to the jacket l through the action of gravity; A suitable valve 38 is preferably employed in said pipe 50 to prevent a sudden rise of temperature in the jacket 1 from forcing fluid out of said pipe back into the tank '3. Either of these forms of radiators may be operated at atmospheric pressure or below atmospheric pressure as desired.

In the forms shown a spring controlled valve 28 is provided which is adjustable and therefore the pressure in the' system may be increasedto any point desired;

in con-v pump 12 like-A 'cuitfrom the tank 3 to the jacket and back to said tank 3 is one of low radiating capacity and therefore, the jacket fluid can be rapidly brought to the boiling point. Further, Whenthelevel 30 of the fluid in the tank 3 gets vbelow the extreme end 31 of pipe 4 or the extreme end 40 of pipe 22 it is evident that steam' will pass directly down either pipe4'or pipe 22, and their connections into the tank 5'whence it will pass upwardly through the watertubes 6 and be rapidly condensed. r

It is further evident the vapors will only pass up said tubes 6 to such distance as is necessary to condense the same whereupon the condensed fluid will return to the tank 5 and under normal conditions will'the upper ends of said tubes 6`be substantially empty and dry. Of course, the heat radiating capacity and therefore'the cooling capacity of the passages 251nay be increased to any pointdesired for all that it is necessary to do istoselect a sufficient number of said pas- -sages 25 to provide the necessary radiation.

and by .controlling these last named pressures the .temperatures in the combustion chambers, andthe ignition and burning of the fuel mixtures are controlled. As the temperatures of the combustion chambers govern the satisfactory propulsive efforts of the fuel it is .clear` that the efficiency of the engine and itssmooth workings undervvarying loads and conditions will depend in a measure upon the satisfactory control of the jacket pressure, as disclosed above. Further, it will be clear that the above important control of the jacket pressures are effected inj this invention by disposing the water tubes 6 in parallel with the tank 5 and with their open upper ends connected with tank 7 so that vapors arising from tank 5 ascend said tubes 6 until they are condensed and they fall back in the liquid form into the tank 5,whence they are pumped out through pipe 13 back into tank 3.

It will further be observed that this system comprises a closed circuit wherein it .may be said that liquid or vapor from pipe 2 divides in tank 3; one part returning to jacket 1 through pipe l5, and another part passing from pipe 4to tank 5 and through pipe 13, tank 3 and pipe 15 back to jacket' 1. The radiator or cooler 10 is joined in It is obvious that those skilled in the art.

may vary the details of construction aswell as the arrangement of parts without .de- 'parting from the spirit of the invention, and therefore, l do not wish to be limited to the above disclosure except quiredby the claims.

lVhat I claim is j 1.V ln a cooling system for internal combustion engines the combination of a jacket; a tank; va 'connection between said jacket and tank; a second tankfa connectionl between said tirst and second named tanks; a pump; a connection between said pump and said second tank; a connection. between said pump and said first named tank;l a cooling means located above said second tank having vapor` condensing tubes communicating with. the

latter; anda second connection including a pump between said first named tank and said jacket, substantially as described.

2. In -a cooling system for internal combustion engines the combination of a jacket; a liquid circuit composed of a tank and connectionsl leading from said jacket to said tank and from said tank back to said jacket; a lsecond tank; a heat extracting means located below said first named tank provided with an air chamber, and open ended passages joiningsaid chamber and second tank; and means for circulating liquid from said first named tank to said second tank and' from said\second.tank to saidfirst named tank,"subs tantially as described.`

3. In a cooling system'for internal'combustion engines, the combination of a jacket; a pair of liquid holdin tanks located one i said jacket and the `uppermost tank, substantially as described.A a 4 4. lIn a cooling system for internal coinbustion engines'the combination of a jacket;

a pair of liquid holding tanks llocated at dif# ferent levels; means for passing liquid and vapors from the uppermost one of said tanks to the lowermost one ofsid tanks; `means for passing liquid back from the lowest to the highest of said tanks;'a cooling means' located between said tanks adapted to condense any vapors given off fromv said lowest tank; and a pair of connections between said jacket and said upper tank, substantially7 as described.

5. In a cooling system for internal combustion engines, the combination of a jacket;

as may be re- 1 again; open ended cooling passages conan upper tank; a lower tank; a pump. and connections for continuously circulating' a liquid between said jacket and said' upper tank; a cooling means located between said tanks and connected with said lower tank; and a' second pump and connections for continuously circulating liquid between said tanks.

6. In a cooling system for internal combustion engines the combination of an upper and' a lower tank; means for circulating fiuid from vone tank to the other and back neted to the lower tank; an air chamber betwcen the upper tank and the open upper ends of said passages; a jacket; and a connectionbetween said jacketyandthe upper tank, substantially as described;

7.111 a-cooling system for internal combustion engines; the combination of an upper and a lower tank; a jacket; a connection betweensaid jacket and the upper tank; means .for circulating fluid from one tank to the other and back again; open ended cooling passages connected to the lower tank; an air cliainber between the upper tank and the open upper ends of said passages; and means associated with said air chamber for reliev communicating with said first named circuit for said fluid; separate. means for circulating the fluids in said circuits; a radiator joined in parallel with said circuits; and means for controlling the temperature in said last named circuit. l

.9. In a `cooling s stem for internal combustion engines inc uding a tank, the combination'ofl a circuit for the jacket fluid including said tank; a second circuit including said tank for said fiuid; separate means for circulating the fluids ,in said circuits; a condenser joined in series with saidsecond circuit and parallel to said Afirst circuit;'and means for controllingthe 4temperature in said second circuit; i

1t). Iii a cooling system for internal combustion engines including a tank, the com.

bination of an all-liquid circuit for the jacket fluid including said tank; a second circuit of liquidand vapor and including said tank for said fluid; separate `means for circulating the fluids in said circuits; a con'- denser joined in series with said second circuit and parallel to said first circuit for cona (lensing the .vapors` in said circuits; means -to restrict in, said circuits; the liquid levels to create .thereabove the space for"said vapor; and nieans for controlling the -tem perature-in said second circuit.

In testimony whereof I aflix my signature.

WELLINGTON w. Muni. 

